2.41.1 Top new questions this week

2.41.1.1 a circular figure with lines behind a disc going off in all directions like a sun

http://tex.stackexchange.com/questions/335785/a-circular-figure-with-lines-behind-a-disc-going-off-in-all-directions-like-a-su

I am trying to draw a square with lines behind a disc going off in all directions. Like a rising sun illustration. There must be a better way to code this ... than calculating the coordinates of a  ...
 

- asked by Guido Jorg (17 votes), answered by Guilherme Z. Santos (11 votes)

2.41.1.2 Draw a $\epsilon$ neighborhood

http://tex.stackexchange.com/questions/335826/draw-a-epsilon-neighborhood

I would like how to draw a $ \epsilon $ neighborhood of a set with smooth boundary in "tikz". 
\documentclass[tikz, border=5mm]{standalone} 
\usepackage{tikz} 
...
 

- asked by Victor Hugo (12 votes), answered by Loop Space (15 votes)

2.41.1.3 How are parameter tokens (#1,#2,...,#9) processed?

http://tex.stackexchange.com/questions/335378/how-are-parameter-tokens-1-2-9-processed

I wonder how the TeX token muncher processes parameter arguments. It seems that parameter arguments are sent token by token. Is this true? 
Consider the following code based on wipet's answer used to  ...
 

- asked by macmadness86 (11 votes), answered by David Carlisle (11 votes)

2.41.1.4 How to create a table of signs

http://tex.stackexchange.com/questions/335583/how-to-create-a-table-of-signs

I'm pretty new to TeX and LaTeX and to learn I'm trying to copy my handwritten notes from my notebook to a LaTeX document. 
I feel like I'm starting to understand how LaTeX works, but I'm certainly not  ...
 

- asked by Denys Vitali (10 votes), answered by egreg (11 votes)

2.41.1.5 How to do \widthof with a symbol

http://tex.stackexchange.com/questions/335574/how-to-do-widthof-with-a-symbol

I have the following code: 
\begin{align*} 
c_s &\equiv b_s^2\\ 
&\equiv (c_{s-1}^{(2^{k_{s-1}-k_s-1})})^2 \\ 
&\equiv c_{s-1}^{(2^{k_{s-1}-k_s})} \\ 
&\equiv c_{s-2}^{(2^{k_{s-2}-k_{s-1}}  ...
 

- asked by b_pcakes (10 votes), answered by egreg (9 votes)

2.41.1.6 What is the difference between TeX and Texinfo?

http://tex.stackexchange.com/questions/335715/what-is-the-difference-between-tex-and-texinfo

I want to know if I can compile raw TeX code with the texi2pdf program.
 

- asked by user628544 (8 votes), answered by wicho (14 votes)

2.41.1.7 Missing number error when using the scrbook document class LuaLaTeX

http://tex.stackexchange.com/questions/336167/missing-number-error-when-using-the-scrbook-document-class-lualatex

I'm working on a book of chants, using gregorio. The gregorio package requires LuaLaTeX. To simplify the issue, however, I narrowed the error down with this sample .tex file: 
\documentclass{scrbook} 
...
 

- asked by Nick (7 votes), answered by esdd (5 votes)